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National lab companies are offering antibody tests as part of their return to work offerings, but doctors are warning these tests shouldn't be used yet to determine whether it's safe for you to be back in an office.“There is not a perfect antibody test out there right now to determine an individual’s immunity to COVID-19,” said Dr. Susan Bailey, President of the American Medical Association. “The tests are getting better. We've come a long way in the last few months, but we're certainly not ready to do anything like give someone an immunity certificate or anything like that.Quest Diagnostics and LabCorp are two companies offering the testing to employers.LabCorp does say that antibody testing should not be used as the sole basis to diagnose or exclude COVID-19 infection.Quest Diagnostics also emphasizes it is unknown how long antibodies persist following infection, and if the presence of antibodies gives you immunity.That's something the American Medical Association agrees with.“Everything needs to be taken in context. Have you been exposed to COVID-19? How careful have you been? Have you been in any settings where you might have been inadvertently exposed?” asked Bailey. “The lab values themselves may not mean a whole lot. We still have a lot to learn when it comes to what defines immunity to COVID-19.”Bailey also points to early studies on antibodies that indicate they may not last very long. She says she's not sure antibody testing is ever going to be the way to go to determine when someone is safe to go back to work.If you do get an antibody test, it's important to go over it with your doctor so they can help you understand the significance of it.The American Medical Association says antibody tests can be helpful to try to see how many people in an area have been exposed to COVID-19, and also for determining if someone who had COVID-19 is eligible to donate plasma. 1909

Mortgage rates have risen about half a percentage point since September. What does that mean for you if you’re buying a home now or plan to buy one soon?For starters, don’t panic.When you’re buying a home, the mortgage rate matters, but it shouldn’t monopolize your attention, says Robert Frick, corporate economist for Navy Federal Credit Union. “You shouldn’t focus on the rate and let that scare you into making a hasty decision about buying a house,” he says.How rising rates affect your monthly payment 520

NATIONAL CITY, Calif., (KGTV)-- Residents and business owners in the South Bay are bracing for another round of floods. They have already seen flooding on 18th Street in National City this week, caused by the king tides. Now with the rain, many expect it to be worse. According to FEMA, businesses near West 18th Street and Roosevelt Ave. are right in a low-elevation flood zone. Ocean water travels from the San Diego Bay, up the Sweetwater Channel, and into Paradise Creek. That creek backs right into Jose's Auto Electric yard. Wednesday morning, the city shut down the road because of flooded streets caused by King Tides. During the day, luckily, the water receded before reaching the front door at Jose's Auto Electric. Check 10News Pinpoint Weather The combination of rain and king tides reminded employee Alma Ramirez of last year's disaster. She remembered 30 inches of rainwater gushing into her office and destroying her equipment. "We lost a lot of stuff, and I remembered that I forgot my purse," Ramirez said. "I said, 'Oh my purse!' And I tried to come back, but in less than five minutes, the water was already up. And I said 'Forget about it, just let me get out of here.'"If the flooding gets worse, Ramirez said she may have to move all of the low profile cars in their shop to another location to avoid flood damage for their customers.Meanwhile, neighboring businesses closer to Paradise Creek have already put up sandbags to protect their front office doors and garages. Ramirez hopes it does not get to that point for her shop.The National Weather Services estimates the Flash Flood Watch to continue through 10 p.m. Thursday. A Beach Hazard Statement is in effect until 7 p.m. Friday. 1718

NASA has long been able to check out Mars on the ground with rovers and landers and from far above with orbital spacecraft. Now, it wants to prove that it can sustainably fly around the planet's thin atmosphere at low altitude -- with a tiny helicopter.NASA announced Friday it will send the Mars Helicopter to the Red Planet with the previously announced Mars 2020 rover, set to launch in two years from Florida.The hope is that aircraft like this one -- flying mechanical scouts -- will eventually give scientists another vantage point from which to observe Mars.The helicopter will be mankind's first attempt to fly a heavier-than-air craft -- think helicopter or airplane -- in an atmosphere other than Earth's, the space agency said.Its mission will be to take five test flights after it lands with the rover in February 2021. 839

MINNEAPOLIS (AP) — Attorneys for four former Minneapolis officers charged in the death of George Floyd say that each client should get his own trial, as the officers try to diminish their roles in the Black man’s death by pointing fingers at one another. A hearing is scheduled for Friday to address several issues, including whether there will be a joint trial in the case. Other issues that will be argued include defense requests to move the trial away from Minneapolis. Floyd, who was Black, died May 25 after Derek Chauvin pressed his knee against Floyd’s neck. Chauvin is charged with second-degree murder and other counts, and three other officers are charged with aiding and abetting. 700